Dumping-door-operating mechanism for dump-cars.



No. 894,529. E 'PATENTED EULY 2a, 1908.

DUMPING DOOR OPERATING MBcHAflIQM FOR DUMP CARS.

APPLICATION BILBD FEB.'8. 1906; RENEWED JUNE 20. 190B.

2 SHEETS-SHEET '1 UND @Zwdrdhao 72,

HPOSSON. DUMPING DOOR OPERATING MECHANISM FOR DUMP CARS.

APPLICATION FILED FEB. 8 1906. RENEWED JUNE 20. 1908.

No.894,529. ATENTED JtiLY zs, 1908.

2 SHEETS-SHEET 2,

To all who'm it may concern.

OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

EDWARD POSSON, or CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL DUMP a men.

can COMPANY,

DUMPING-DOOR-OPERATING MECHANISM FOR DUMP-CARS.

v Specification of Letters Patent.

Patented July as, loos.

llpplication filed February 8, 1906, Serial No. 300,153. Renewed June 20, 1908. Serial No. 4l89,597. I

Be it known that I, EDWARD Possongfa citizen of the United States, residing at Chicago, in the county of Cook and State of Illi- 1101s, have 'invented certain new and useful j Improvements in Dum ing-Door-Operating Mechanisms for Dumplowing is a specification.

- v binations and details .tional viewin elevation, taken on ine 3- of My invention relates to that class of dump cars having dumping doors mounted in the ear. frame and reciprocatory mechanism for 'iiperating such doors.

My invention consists in the features, comof construction hereinafter described and claimed.

Inthe accompanying drawingsFigure 1 is an end view ance'wit my 1m rovements; Fig. 2' a plan view of the parts s ownin Fig. 1; Fi 3 a sec- Fig. 2, looking in the direction of the'arrow; and Fig. 4 a plan view of the track and rack member.

In constructing a car provided with my improved door-operating mechanism, a car framewhich'may'be of any ordinary and well known typeis provided, comprisin transverse members a .in the formof, em

sills and intermediate transverse members arranged at suitable intervals and extending transversely of the car adjacent to the ends of the dumpin which include the side and center sills and which'may be of any ordinary construction, form, with the transverse members, a com- 1pllete supporting frame. Side and end 'ames'are also provided,'comprising corner stakes c and end stakes (I mounted in suitable metallic sockets and f, respectively all of which may be of any ord nary and welllon itudina its ongitudinal center,

.known tqile. Dumping doors -g extend f the car on opposite sides-of having their inner edges pivotally secured to the car frame by means of suitable pivot members. it and hinged members i. The swinging sides of thus adapted tomove upward flat bottom ortions, and downward to o enfinclined dumping position. At suita le intervals the dumping doors are provided which engage antifriction supporting wheels rotatably mounted upon reciprocatory ars of whichthe folv of a car'provided with dooroperating1 mechanism constructed in accorddoors. Longitudinal sills b,

I with angular strips 9, having inclined bottom cam surfaces i I .7 m shafts Z. These reciprocatory shafts ep tend beneath the dumping doors longitudin" ly of the car, and are movable transversely back and forth beneath the doors, being supported upon inclined track members m, whichare" secured to each of the transverse beams of the car frame, including the end beams or sills.

Spaces n are thus rovided. over the inclined track members,.w ich extend transversely of the car and upward and outward at an incline, so as to permit the movement of the reciprocatory door-sup orting and operatin shafts 1 upon the tracli members. The traci: members men opposite sides of the car are also each provided with rack portions, having rack teeth 0 on one side of such track members and with ratchet portions having ratchet teeth p on the opposite sides thereof.

. These ratchet teeth 72 enga e the toothed portions 9, of the gravity aws 77, which are mounted upon a-nd rotata le with relation to the reciprocatory shafts l, so that such p'awls are adapted to hold the reciprocatory shafts against movement toward the center of the carwhen such. shafts are in dilferent adjusted positions. I The rack teeth 0 engage the teeth 8 ofjhe pinions which are provided with squared axialperforations and mounted spondingly squared portions of catory shafts, so as illustrated in Fig. 3. v

For the purpose ofshielding the pinion's t om the accumulation of dirt and to preventthe material to be handled from coming in contacti'therewith, the transversebeams or end sills adjacent to which such pinions are mounted have. grooves u in their sides a; receiving .such pinions. This also enables the rack portions o to be Iii'ounted beneath such transverse beams, so as to be shielded thereby. The rack'portions rare also provided with inclined u per to intermediate the rac teeth, as already described, which prevent the dirt fromaccumulating between such teeth and permit it to escape before being packed between the rack teeth by the contact of thcpinion teeth. ratchet wheel 1 is provided for each pawl and Tel-L l; mechanism, and. secured to each of the reciprocatory shafts by means of squared axial perforations through such ratchet wheels, which fit upon correspondingly squared portions of the shafts, as shown in Fig. 3. Those ratchet wheels are provided the recipro-, to rotate therewith, as v surface portions with ratchet teeth 2', which engage gravity awls 2, pivotally mounted. upon opera-ti: '1 overs 3 between the arms 4 and 5 of such op erating levers. The arm portions of the operating levers are provided with cylindrical perforations mounted upon and in rotatable relation to the reciprocatory shafts, so as to embrace the pawls 2 and ratchets z therebc tween. The reciprocation of the levers with their respective pawls thus serves to rotate the ratchet wheels engaged thereby and to move the reciprocatory shafts outward transversely of the car, by rotating such shafts with their I inions in engagement with the racks o, a ready described. The gravity pawls r serve to secure the reciprocatory shafts against backward movement by engaging the teeth 0 of the racks o.

In order to provide means for locking the reciprocatory shafts at their outward desired limit of motion-or, in other words, in posi tion to support the dumping doors in closed position, mounted upon the car frame in )osition to limit the downward movement ol the outer ends of the levers, and locking pins 7 are mounted uponsuch stop arms and extend through sultable perforations in the operating levers when in their lower position. They are thus adapted to securely lock the levers, and thereby the shafts and doors in position. Detent shoulder portions 8 upon the fixed ortion of the car frame serve to limit the ownward movement of the dumping doors and support them in their lowermost 0 en dumping position.

By t e above arrangement, the reciprocatory shaft being in the position indicated in the dotted lines in Fig. 1-the vibration of the operating lever causes the rotation of such shaft in the direction necessary to move it outward transversely of the car, thereby raising the door from lowered position, shown in dotted lines in Fig. 1, to raised closed position in a step by step manner, and the pawl 1' engaging the teeth 0 serves to prevent the return movement of the reciproca tory shaft upon which such pawl is mounted. It also serves to securely hold the shaft in position to support the door in any dosired intermediate position, as well as in open and closed positions.

When the operating lever and reciproca" tory shaft mechanism are in position to hold the door closed, they may be locked by means of the locking/pin 7, as already described, and in order to permit the door to 'move to open dumping position and to be ,stop ed during such movement at any dosire intermediate position, it is only necessary to remove the locking pin and release the operating lever pawl and the pawl upon the reciprocatory shaft alternately or in a step by step manner by the reciprocation of the operating lever. Whenit is desired'to peras shown in Fig. 1-stop arms 6 are t'ra me.

pavvl such l'(('ll )l'\ H"l-? thereby the do If. in adun frame, a dumping mom moral/ls- '5 pie-n us. wmi lililllimwiriv1? ziroonf i therein m and ii at ilH filullt and ti pmtitions.

in .1m 7 frame, a. (iiblllnlfi nmvablc to cipromm pawl: l suru sin-ll p: by the meal) adjusti 4. lnarlui i wm frame. a dam. l.

ll, 1 fllWllblsWl airing dad onlOl :szn con and the:

.1. in :1 or

frame, d i movable to open l'oa'aionvshaft111M". doors pawl and :ttlilfl Sllr'li filia n: dumping (loot? ismforlioldil Killll o" :1 ":ii lliori-m rovip llO m f r operhcr-"ll tho i llllUililll" anism and ilueivlrv who sitions.

6. il'litililllllltilf' l:"1 vl wlliwiliil lif'ill' frame, movable to opin and .lrocatory shalt haw-trai doors, pinion niacin reciproinitorr sh: anism pro vided l i dump 'iv therein mont withsnch L no: 15.3 rotating such rm-ip o: tc 'mrvlmanism, ztU pavi and 1 HUCilUllnlll for llolrl ing the recipro rim. and

thereby the d nor 7'. inadurnpnar l' rm:-

rack movable to oplen and I and lever mechanism for operating ratchet and thereby-the reciprocatory shaft, and means for lockin such frame, a dumping door mounted therein movable to 0 'en and closed positions, a reciprocatory s aft mounted beneath such oor, a inion upon such shaft, a rack provided with rack teeth in toothed engagement with such pinion, a pawl mounted reciprocatory shaft, a rackv teeth in engagement Wltll such pawl, alilldf means for rotating such reciprocatory s a t.

frame a dumping ciprocatory' s aft mounted beneath such door, a pinion upon such shaft, a rack'pro: vided with rack teeth in engagement with such pinion, apawl ciprocatory sha t, a rack teeth in engagement with such ratchet u on such reciprocatory shaft, and pawl an lever mechanism "for operatin ratchet and thereby the shaft.

9. In a dump car, frame, a dumping movable to open and rocatory shaft mounted beneath such door, a inion upon such shaft, a pawl also mountof on the shaft, a rack provided with rack teeth in toothed eng gement with such' 'aWl, a'ratchet upon such reciprocatory shaft,

such

such lever andreciprocatory shaft in position to support the door in closed position.

10. In a dump car having the usual framewor a series of dumping doors hinged-there to, an operatlng shaft for operating the dumpin doors, such. shaft bein mounted longitu inally of thecar in, the ramework,-

the end of the shaft projecting through a slot in the end sill of the framework, a combined ratchet and rack plate mounted on the'end sill, said plate c'om risin ratchet bar, a paralle longitudinal rack bar and an integral web portion connecting them, andmeans upon the end of the shaft for en and the rack bar.

11. In a railway car, the combination of a downwardly opening dumping door, a'reciprocatory shaft for'operating said door,a star wheel or ratchet fixed to 'saldshaft, an operating handle rotatably mounted concentric to said shaft and adapted. to reciprocate u on suchv provi ed with;

. I I .to compel bodily 8. In a dump car, the" combination of a car. saidshaft when door mounted therein closed positions, a re dle rotatably mounted upon suchresf provided with racfk pawl, a

r i ..rocatory shaft for operating said door, the combinationof a car.

' which the teethof star wheel or ratchet fixed-to said shaft,' an

- tricjto said shaft and adapted 14. jInarailwa hinged downwar a longitudinal with said star wheel or therewith, a cooperate tions, substantially as described.

, 12. In a railway car,.the combination of 1a downwardly openingdumping door, arecip 'rocatory shaft for operating said door, means transverse movement of it is rotated, a-star wheel or ratchet fixed to said shaft and a a pawl on sai handle adapted tocoopcrate j with said star wheel orratchet wherebysaid i by said handle, and

shaft: may rotated";

means for holdmgthe-shaft'and thereby the door in different adjusted positions, ,sub'stam tiajlly'as described.

operating handle rotatably mounted'concen-f to 'reclprocate therewith, a

cooperate with'sald' star wheel :or ratchet tions, substantially as described.- car, the combination-eta ly-o ening dumping door, a recigrocatory shaft or operating said door, said s aft being mounted below ({ited' to reciprocate therewith, T-

shaft, anoperat ing han 1 mounted concentric to said Q g 1.3. In a railway car, the combination-of'a. reciprocatory' pawlon s'aidhandle adapted to i m the ,door and adapted to support the same, a pinion fixed T tosaid shaft, a stationary *rack with which the teeth of-said pinion;co6perate, a star to said shaft, anoperating handle rotatably mounted on said shaft and ada ted to reciprocate therewith, a pawl'on said handle adapted to cooperate ratchet whereby said shaft may berotated by said handle, and means for holding the shaftand thereby the door in different adjusted positions, substantially as described.

Witnesses: I

NORMAN A. STREET, W.- 'I. JoNEs;

EDWARD rcssoN. 

